209736 2020-03-30 05:38:53 -0700 textarea selectionDirection returns 'none' for mouse selection 2020-03-30 14:51:03 -0700 1 1 1 Unclassified WebKit HTML Editing Safari 13 All All RESOLVED INVALID https://bugs.webkit.org/show_bug.cgi?id=60403 InRadar P2 Normal --- 1 wangbing.imail webkit-unassigned ap megan_gardner rniwa webkit-bug-importer wenson_hsieh oldest_to_newest 1635467 0 wangbing.imail 2020-03-30 05:38:53 -0700 Steps to reproduce the problem: 1. Select some text inside a textarea in backward/forward direction 2. get selectionDirection property on that textarea via javascript What is the expected behavior? Expected to get value 'backward/forward' What went wrong? Always get 'none' Did this work before? N/A Here's jsFiddle that demonstrates the behavior: http://jsfiddle.net/7Mhqy/1/ 1635686 1 webkit-bug-importer 2020-03-30 13:41:02 -0700 <rdar://problem/61070960> 1635694 2 ap 2020-03-30 13:45:28 -0700 This property only works for keyboard selection (Shift+Right/Left) in WebKit and in Chrome. It does work for mouse selection in Firefox. 1635753 3 rniwa 2020-03-30 14:51:03 -0700 (In reply to Bing Wang from comment #0) > Steps to reproduce the problem: > 1. Select some text inside a textarea in backward/forward direction > 2. get selectionDirection property on that textarea via javascript > > What is the expected behavior? > Expected to get value 'backward/forward' > > What went wrong? > Always get 'none' This is expected. On macOS, mouse selection is directionless. The selection extends backwards or forwards depending on user's input, at which point the direction will be determined.